1. Zero Conditional
If you want to have a good vocabulary, you have to read a lot.
If you have a healthy diet, you get sick less often.

2. Zero conditional There is a main clause, and an if clause.
Use present simple (or any other present tense, such as present continuous or present perfect) in both clauses.
The Zero conditional talks about things that are always true, or always happen in a cause and effect relation.

3. First Conditional If you study enough, you will have a good grade.
If he wakes up at 7.30, he won’t get to work on time.

4. First Conditional
If you are still having breakfast at 7.30, you won’t get to work on time.
If you haven’t finished breakfast by 7.30, you won’t have gotten to work by 8.00.
If you are going downtown, can you get me some groceries?
If you pass by the newsstand, get me a newspaper, please.

5. First Conditional There is a main clause and an if clause.
Use present simple (or any other present tense, such as present continuous or present perfect) in the if clause.
Use a future tense (future simple, future continuous, future perfect, going to, present continuous) or a modal or an imperative in the main clause.

6. Future Time Clauses
These clauses follow the same model of the first conditional.
There is a main clause, and a future time clause (the clause that starts with before, after, as soon as, until, when, while, in case, unless).

7. Future Time Clauses
Use a future tense (future simple, future continuous, future perfect, going to, present continuous) or a modal or an imperative in the main clause.
Use present simple (or any other present tense, such as present continuous or present perfect) in the future time clause.

8. Future Time Clauses I’ll be ready as soon as I’ve had a shower.
We’ll be watching the Cup Final when you arrive.
We’re not going to go out until the rain has stopped.